#3 Contact lens First Prototypes

August Müller in Kiel, Germany, corrected his own severe myopia with a more convenient blown-glass scleral contact lens of his own manufacture in 1888. Also in 1887, Louis J. Girard invented a similar scleral form of contact lens. Blown-glass scleral lenses remained the only form of contact lens until the 1930s when Perspex/Plexiglas was developed, allowing plastic scleral lenses to be manufactured for the first time. In 1936, optometrist William Feinbloom introduced plastic in lenses, making them lighter and more convenient. These lenses were a combination of glass and plastic. In 1939, Hungarian optometrist Dr István Györffy produced first fully plastic lenses. Later, in 1940, German optometrist Heinrich Wöhlk produced fully plastic lenses too, based on experiments performed during the 1930s.